51358019 has 2 divisors, whose sum is σ = 51358020. Its totient is φ = 51358018.

The previous prime is 51358001. The next prime is 51358031. The reversal of 51358019 is 91085315.

51358019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51358019 - 2²⁴ = 34580803 is a prime.

It is a super-2 number, since 2×51358019² = 5275292231208722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51358049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25679009 + 25679010.

It is an arithmetic number, because the mean of its divisors is an integer number (25679010).

Almost surely, 2^51358019 is an apocalyptic number.

51358019 is a deficient number, since it is larger than the sum of its proper divisors (1).

51358019 is an equidigital number, since it uses as much as digits as its factorization.

51358019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 51358019 is about 7166.4509347375. The cubic root of 51358019 is about 371.7087243747.

The spelling of 51358019 in words is "fifty-one million, three hundred fifty-eight thousand, nineteen".